Silicone Rubber Disc Air Diffuser for Wastewater Treatment

Basic Info

Model NO.	PR-D270
Specification	270mm
Trademark	Proen
Origin	China
HS Code	8479899990
Production Capacity	200000PCS/Yr

Product Description

Application Scope

Fine bubble aerator system is designed exclusively for oxygen supply in sewage bio-treatment process. As its aerator membrane adopts EPDM rubber, which has corrosion resistance, aging resistance and service life unparallel by other engineering composite rubbers, thus it is widely applied in urban domestic sewage treatment system and industrial sewage treatment plants. This system can be used both for continuous running system and for batch running system. Product Show

Material Properties
Silicone rubber(Q) is a special rubber with silicon atom and oxygen atom in the backbone structure, in which the silicon atom perform as the main role. Silicone rubber has excellent temperature resistance up to +300ºC and minimum to -100ºC. It has good performance on electric insulation. It is quite stable to heat oxidation and ozone. The elasticity is better than EPDM's. It is inert chemical. Shortcomings: low mechanical strength, bad performance on anti-oil, anti-solvent and anti-acid and anti-alkali. Hard to be vulcanized. The price is a little expensive than EPDM. Continuous service temperature: -60ºC~+200ºC.

Structure

Application Show

Parameters

Mode	PR-D270(9")
Material of Membrane	EPDM	Silicone rubber
Thickness of membrane	2.0mm±0.1mm	2.0mm±0.1mm
Effective diffusion area	0.045m2	0.045m2
Openings/pc	about 6500 openings	about 6500 openings
Diameter of bubble	0.8mm-1.5mm	1.0mm-1.8mm
Lifetime of membrane	>6yrs	>6yrs
Standard volume of aeration	2.5m³/h-4.0m³/h	2.5m³/h-4.0m³/h
Aeration range	1.5m³/h-7.0m³/h	1.5m³/h-7.0m³/h
Resistance loss	2.0kPa-4.3kPa	2.0kPa-4.0kPa
Standard oxygen transfer rate(depth of water:6m)	≥38%	≥36%
Standard oxygenation capacity	≥0.37kgO2/h	≥0.34kgO2/h
Theoretical power efficiency	≥9.0kgO2/kw.h	≥8.9kgO2/kw.h
Service aera	0.25m2/pc-1.0m2/pc	0.25m2/pc-1.0m2/pc

Test was made under standard condition, i.e., clean, oxygen-free water (20ºC), air pressure is 1.013*105

Packing/Component Info

Model	PR-D215	PR-D270	PR-330
Weight/Set	0.49kg	0.68kg	0.96kg
Weight/Carton	17.5kg	18.5kg	24kg
Pcs/Carton	34	26	24
Ball Check Valve	Non	Non	For DN80 Pipe
Material of Support Base	Reinforced PP	Reinforced PP	ABS
Outer Diameter of The Support Base	225	270	340
Specification of Connection Part	DN20 Screw Connector
Pipes Applied To	DN50~DN100
Holder	Wedged Holder
Material of Holder	ABS

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Notification:

Pinboard clamp is a component. It's independent from the aerator/diffuser. For more details, pls contact us.